George featherstone griffin



(No Model.)

G. F. GRIFFIN. Sheet Metal Can or- Box.

lllllllr] INVENTOR WITNESSES.

ATTORN EY.

N. PETERS. Hoke-Lithographer. Washlngton, DIG.

NiTnn STATES PATENT OFFICE.

GEORGE FEATHERSTONE GRIFFIN, OF LONDON, ENGLAND.

SHEET-METAL CAN 0R BOX.

SPECIFICATION forming part of Letters Patent No. 241,001, dated May 3,1881.

Application filed December 7, 1880. (No model.) Iatented in EnglandSeptember 13, 1880, and in France September 27, 1880.

To all whom it may concern:

Be it known that I, GEORGE FEATHERS'IONE GRIFFIN, of London, England,have invented certain new and useful Improvements in Sheet Metal Cans orBoxes; and I hereby declare the same to be fully, clearly, and exactlydescribed, as follows, reference being bad to the accompanying drawings,in which Figure l is a side elevation of a box embodying my invention,and Fig. 2 is a sectional view on the line a: a; of Fig. 1.

My invention relates to tin or other sheetmetal boxes or cans; and ithas for its object toproduce a box having a lid orcover soldered to thebody, which said lid is loosened preparatory to removal by hammeringupon its edge, whereby it is driven down over certain ribs upon the bodyof the box, which wedge the lower edge of the lid away from the body andbreak the solder.

My said invention consists, first, in a box or can having near its upperedge ribs or projections arranged to wedge open the lower edge of thelid; and, second, in a box or can of the aforesaid construction havingthe flange of its cover or the upperedge of the body, or both,strengthened by doubling the metal, as hereinafter set forth.

In the drawings, A is the body of the box, having a series of wedge-likeprojections, to a, formed near its upper edge, and B is the cover, whoseflange I) is of a depth greater than the depth of the cylindrical partof the body above the ribs or projections a. The edge of the body is ormaybe folded or doubled, as shown at c, and in case the metal is thinthe flange of the lid is also doubled, as shown at d.

The box being filled, the lid is soldered in place by solder s 'covering its lower edge.

In order to open the box, it is only necessary to hammer upon the edgeof the cover, pressing it down over the body. In so doing the lower edgeof the cover rises upon the projections or ribs to, and is tornawayi'rom the body of the can, breaking the solder, and enabling one toremove the cover, which latter may be replaced afterward.

The folding or doubling of the edges of the bodyandcovergivcs,incasethinmetalhas been used in making the box, a degree of stiffness andstrength which prevents either part from being battered out of shape inopening the box.

What 1 claim is- 1. A sheet-metal box having formed on its body a seriesof ribs or projections, 0, adapted, as described, to expand by a wedgingaction the flange of the lid or cover as it is forced down thereover, asset forth.

2. The sheet-metal box having a folded or doubled portion, as set forth,and a series of wedge-like ribs or projections near the upper edge ofthe body, substantially as and for the purpose set forth.

G. FEATHERSTONE GRIFFIN.

Witnesses WlLLIAM EDWARD Gnncn, J OHN Fos'rnn LENNox States.

